CCA(Copper Clad Alumnium)Tube CCA(copper Clad Aluminum) tube is one kind of new tube that developed by Xingrong based on ACC tube, the production process of CCA is alike ACC tube. The copper-aluminum interface is in form of metal bonding between Cu and Al atoms. The tube has an outer layer of antirust 3003 aluminum and inner layer of oxygen-free copper, widely applied in insulated connection pipe, tubing, refrigeration industry, vaporize tube of water heater, inner conductor of RF coaxial cable and so on. Comparing with copper tube in same specification, this tube can save more than 40% purchase cost for customers and here is not so many difference in production process between copper tube and CCA tube. It can perfectly satisfy the usage requirements of customers.